Draft arm assembly for dispensing liquids



- trated in Fig. 1; i

- receptacle has an opening 8 in the bottom through Patented Feb; 28, 1939 UNITED STATES &1483562 DRAFT ARM ASSEMBLY FOR. DISPENSING LIQUIDS Frederick H. Tweed, Chicago, Ill., ass'ignor to The Dole Valve Company, Chicago, Ill., a corporation of Illinois Application July 28, 1934, Serial N 737320 i 6 Claims.

to provide a'draft arm assembly which will meet efliciently therequirements of a device of this description. The invention has further objects which are more particularly pointed out in the accompanying description.

Referring now to the drawings, Fig. 1 is a view showing one iorm of device embodying the invention;

Fig. 2 is a sectional view of the device illus- Fig. 3 is an elevation of the syrup container;

Fig. 4 is a sectional view taken on line 4-4 of Fig. 2. r

Like numerals refer to like parts throughout the several figures.

Referring now to the drawings, I have shown a body portion l which carries the draft arm assembly of. the device. This draft arm assembly consists of a. handle 2 and a valve Operating member 3 connected therewithby the shaft 4. The valve Operating member is connected to the syrup chamber valve in the form ofa cylindrical portion 5 in a chamber li into which the syrup from the syrup receptacle 'I is received. 'I'he syrup which the syrup passes. It also has a supporting member 9 which ts into the upper end of the strainer chamber n. This support has a hollow inwardly projecting portion Il which fits over a rounded portion |2 so as to give the syrup receptacle a free rocking supporting connection. A fastening element !3 engages the part H, see Fig. 2, and is held in place by the threaded member M which passes through an opening in "it and which has a shoulder [5 engaging the fastenlng member !3. The threaded member !4 has a screw threaded end IS which enters a screw threaded .opening in the bottom of the strainer chamber o. The member |4 projects through the syrup receptacle and is provided at the top with a thumb piece I'l for turning it to connect'it or disconnect it from the strainer chamber. within the strainer chamber is a strainer !8 which is also held in place by the threaded member l4. The syrup, after being strained, passes into the interior of the cylindrical part 5 of the valve. This valve has an opening 20 and the wall has no opening 2| so that when the draft arm is in its normal position the openings will register and permit syrup to pass into enters the 'openngs 23 to beready .to be discharged into the nozzle 25. The bottom also has a downwardly extendng flange 24 for the nozzle 25 through which the material is discharged. This nozzle has an outwardly bent discharge end 26 which brings it out from under the body portion I so as to be within easy reach of the receptacles into which the mixture is discharged. within the nozzle 25 is a control device forinsu'ring the uniform discharge of the proper amount of material into the nozzle, regardless of the height of the syrup in the chamber 6. This control device consists of the member 21 which has a beveled or inclined inner wall 28. Within the member 21 is a cylindrical portion 29 between the outer wall of which and th'e inclined wall 28.is a receiving space 30, the cross sectional area of which decreases from the top toward the bottom. 'This receiving space 30 communicates with the chamber 3I.

The valveoperating member 3 is provided with a cam 32a which, when the handle 2 is rocked;

engages the member 32b on the top of the pins 32c. These pins engage the valve 32, see Fig. 4. The cam 320. presses them downwardly so as to open the valve 32 to let the syrup into the nozzle through the openings 23. When the valve 32 is opened, as in Fig. 2, the syrup from the syrup receptacle passes into the chamber 3l through openings 23 which communicate with chamber 22,'and into the space 30 and then down into the lower part of the nozzle. The cylinder 29 is closed at the top and the charged water passes down into it through the pipe 33, passing out through the openings 3.4. A spring 35 surrounds the lower end of the pipe 33, its lower end being supported on the member 36. This spring returns the vaive 32 to its closed position when the pins 32c are released by the cam 32a by turning the handle back. It will be noted that the valve 32 closes the upper end of the cylinder 29 and that the cylinder 29 and the valve move together. The downward movement of the valve opens the openings 23 to let the syrup enter the nozzle and the downward movement of the cylinder 29 opens the bottom of the space 30 so as to let the syrup enter the nozzle and become mixed with the charged water. The member 31 passes through this member 36, as shown in Fig. 2. At the upper part of the body portion I is a connection 38 which communicates with the passageway 39, discharging atmospherc air into the chamber 22 to insure the proper discharge of the syrup therein.

When the draft arm is moved to open the valve 32, the cylindrical part 5 is moved so as to move the openings 20 and 2| out of register and close oli the admission of the syrup into the chamber 22. In this position, the air passage 2011 in the part 5 has its end 20b in communication with the air passageway 39 which extends 'the parts in position.

up through the connection 33 and to which is connected the pipe 38a extending up along the syrup receptacle 1, its end preferably being above the level of the syrup therein. The rotation of the valve Operating member 3 to open the valve 32 also opens the valve 44 which admits the soda water from the pipe 44a into the passageway 33 and out through the openings 34 so as to mingle with the syrup. The soda water valve 44 is opened by a cam 45 which engages a pivoted arm 46, one end of which engages the stem 41 of the valve 44 so as to open said valve. A spring 48 returns the valve, when the handle 2 is moved, back to its initial position. The spring and valve are mounted in a cylindrical holder %a which has one end projecting into a sleeve 581 provided on its exterior with a series of grooves ilac extending therearouiid. A screw 48d passes through the wall of the member i and has its end projecting into one of these grooves so as to hold When the syrup, upon opening the valve 32, passes from the opening 23 into the chamber 3! and passes down into the space 30, its movement is slowed down and the space between'the edge of the part 21 and the part 29 is comparatively small so that the same amount of syrup will be discharged each time, regardless of the height of the syrup in the chamber 5. There is also an air passage 40 up through the nozzle to the top of the chamber 35 so that air can enter this chamber, thus permitting the proper flow of the syrup therefrom.

The draft arm ass'embly and the syrup tank when in use, are located in a tank ll which has walls of insulating material 42. Means are provided for cooling the syrup tank and draft arm assembly. The syrup receptacle has inclined walls 43 which converge towards the bottom so that ice placed in the tank 4! can easily fall down to the bottom. It will be seen that this ice or cold water, or whatever cooling medium is used, surrounds the draft arm assembly so as to cool the syrup therein, and thus the first draft of material will be sure to be cooled. Inthe prior devices as now in use the draft arm assembly is outside of the cooling tank. v By this Construction it is placed in the cooling tank and the handle for controlling the draft arm assembly is outside 'and the nozzle is bent outwardly so as to make it easy to place the receptacle, in which the mixed syrup and charged water is discharged, under the nozzle, so as to make the `device practical for commercial use in dispensing beverages. The ca'bonated water to be used in connection with the syrup passes from thesource of its supply through the pipe 50 to the coil bi, where it is cooled, and it then passes through pipe 52 to the cooling tank 53 which extends down to the bottom of the receptacle M. From the bottom of this receptacle the carbonated water passes through pipe 44a into the body portion l. Tank 53 has an air vent'4 and the cooling receptacle has drain pipe 55.

I claim:

1. A device of the kind described comprising a body portion, a syrup receptacle, a supporting member connected therewith, a rocking connection between said syrup receptacle and said body portion, and a removable fastening device extending through said syrup receptacle for fastening the syrup receptacle in position, and a strainer beneath said syrup receptacle separate therefrom through which said fastening device passes.

2. A device of the kind described comprising araacca a body portion, a draft arm assembly carried thereby having a hollow valve member, a syrup receptacle, means for delivering syrup from said syrup receptacle into said hollow valve member, a receptacle in said body portion into which said syrup `is discharged when the hollow valve member is rotated, a ,discharge nozzle connected with said body portion, and means associated therewith for retarding the discharge of the syrup into the nozzle.

3. A device of the kind described comprising a body portion, a syrup chamber therein, a draft arm assembly carried thereby having a hollow valve member, a. syrup receptacle, means ;for delivering syrup from said syrup receptacle into said hollow valve member," a receptacle in said body portion into which said syrup is discharged when the hollow valve member is rotated, a

discharge nozzle connected with said body portion, a charged water delivery device for delivering charged water into said nozzle, and means surrounding said charged water delivery device for securingthe discharge of a uniform stream of syrup into said nozzle independent of the height of the syrup in the syrup chamber in said body portion.

4. A device of the kind described comprising a body portion, a syrup chamber therein, a draft arm assembly carried thereby having a hollow valve member, means for delivering syrup from said syrup chamber into said hollow valve member, a receptacle in said body portion into which said syrup is discharged when the hollow valve member is rotated, a discharge nozzle connected with said body portion, and means for securing the discharge of a uniorm stream of syrup into said nozzle independent of the height of the syrup in the syrup chamber in said body portion, said means comprising an' outer member and an inner member having converging walls which form a space between them decreasing in cross sectional area from the top toward the bottom and into which the syrup passes.

5. A device of the kind described comprising a body portion, a syrup chamber therein, a draft arm assembly carried thereby having a hollow valve member, means for delivering syrup from said syrup chamber into said hollow valve mem ber, a receptacle in said body portion into which said syrup is discharged when the hollow valve member is rotated, a discharge nozzle connected with said body portion, and means for securing the discharge of a uniform stream of syrup into said nozzle independent of the height of the syrup in said body portion, said means comprising an outer member and an inner member having converging walls which form a space between them decreasing in cross sectional area from the top toward the bottom and into which the syrup passes, and means for admitting air to the top of said space.

6. A device of the kind described comprising a body portion, a syrup receptacle which discharges syrup into said body portion, a valve in said body portion. through which the syrup passes, a syrup chamber in said body portion for the syrup passing from said valve, a cooling tank in which said body portion is received so that the syrup in the valve and in the chamber therein will be cooled by the cooling material in the tank, and a controlling arm outside of the tank, and a connection between said controlling arm and the valve.

FREDERICK H. TWEED. 

